Bag



C. V. BRADY Jan. 1, 1946.

BAG

2 Sheets-Sheet l Filed Dec. 31

FIG

Jan. 1, 1946.

C. V. BRADY BAG Filed Dec. 51, 1942 2 SheetS- Sheet 2 Patented Jan. I,1946 UN I 2,392,221 i l c BAG Charles V. Brady, Webster Groves,assig'ir'oi' to Be'nfis Bro. BaigCompa'ny, St. Louis, Mia, a corporationof Missouri Application December 31, 1942, Serial No. 470,761

=6 elaims.

. This invention relates to bags, and with regard to certain morespecific features, to bags having draw strings or cords.

he invention is an improvement upon the constructions shown in UnitedStates Reissue Patent 18,905, dated August 1, 1933, issued to H. H-Allen, for a bag; and United States Patent 2,263,346, dated November18, 1941, issued to C. Arne, also for a bag.

Among the several objects of the invention may be noted the provision ofan improved form of bag with a woven-indraw cord, and more particularlyan open mesh bag which may be closed b'y-a simple pulling operation, yetwhich will never automatically reopen in response to pressure from thebag contents; theprovision of a draw-cord bag of the class describedwhich, while holding shut against pressure from the contents, may bereadily reopened by a lateral pulling operation at the bag mouth,without damage to the bag mouth or the draw cord; and the provision of aconstruction or the class described which is simple in form andoperation and which may be economicall'y organized during weaving withthe open-mesh fabric fromwhich bags'are gt'anerall'y formed. Otherobjects will be in part obvious and in part pointed out hereinafter.

The invention accordingly comprises the e1emerits and combinations ofelements, features of construction, "and" arrangements of parts which 9will be exemplified in the structures hereinafter described, and thescope of the application of Whichwill-be indicated in the followingclaims.

"In the accompanying drawings, in' which are illustrated several ofVarious possible embodimerits of theinvention, i

Fig. l is a broken plan view of an area of open weave flat fabricincorporating the invention;

Fig. an a fragmentary man view or a finished bag mouth; 7

Fig. 3 is a horizontal diagrammatic section on a'n e'nlarged scale takenon line '3 3 of Fig. '2;

' Fig. 4 is a view similar to Fig. 2', but illustrating the bagfilledand closed:

Fig. 5 is a view similar to Fig. 3, showing the bag mouth closed; 7 p IFig. 6 is a view similar to Fig. 3-, showing another former theinvention:

Fig. 7 is a view similar to Fig. 4, showing another manner of effectingaclosure; and, 7 7 Big. a is a diagrammatic view taken on line 8-,: 0:Fig. '1.

' Similar reference characters indicate GOIIBf spending parts throughoutthe several views of the drawings. I

It should be noted that Figs. 2 and 4 are on approximatel the samereduced scale. Fig. 1 is on a larger scale; Fig. 7 is also on a largerscale. 3, 5, 6 a'nd8 are on a still-larger'scale, and in. these figuresthe drawings are dia rammatic.

and irregular launching of strands has been avoided in order to make amore orderly showing oiprinciples.

In the Allen patent is shown a simple ura-w cord woven into the looseweave fabric, i i-6m which a bag is later formed. This is done in sucha. way that the draw cord becomes located "at the bag mouth. Thisconstruction is satisfactory in cases where bags are loaded, the drawcord pulled tight, and then permanentl fastened-as by knotting. The drawcord must be perma elit 1y inade fast, since there is otherwise notenough friction betweenit and the fabric weave to hold the bag shut.This means that if it is desired to open the bag, the knots must beUntied or the cord but. In many cases bags are filled, for e32 ample,with fruit, and then presented to an in specter who may want to replacea damaged piece. In such cases, it is quite desirable that the bag bereadily opened manual-1y Withdlit tying knots or the like, and thatsubsequently closure can be readily efiected. Nevertheless the bag mustnot open automatically im-aer pressure from its contents.

In the Arne patent, bag closure and reopening are effected by a drawcord without requiring the tying or uhtying of any knots, but the enectbf holding shut the bag depends upon crinkling of a tubular hem which iscostly and imizvracticable in the case of open mesh bags. when use 'onopen mesh bags, this construction does not have enough frictionenectively to maintain closure. In addition, it is difficult to helh allopen fil''sli fabric. A

Referring now more particmarly to Fig. 1, there is shown at numeral I anopen m sh fabric having double leno' woven. warp threads 3' and singlefilling threads '(in'dicated generically at'e') with 's'elvage edges Iparallel to the warp threads. Duringweaving one of the double warpthreads 3A is onset from what would be its normal position. thus leavinga larger distance to the next warp threads 33; Into the resulting spacebe'-. tween threads 3A and 33, there is woven in, during' the weavingprocess, a pair of helicaliy twisted draw cords 9 and II. As indicatedin the drawings for purposes oi-example, but not limitation, this pairof twisted cords is woven over three filling threads 5F and underoneiilling thread 5L repeatedly throughout'the length of the fabricstrip; The purpose of'f'ii'ot weaving this pair .of draw cords over andunder adie cent single filling threads is to avoid too tight a weavebetween the draw cords and said lilli'rig threads which might laterresist proper closure.

Preferably, the two draw cords-9 and II are distinguished from oneanother by color; thus for example draw cord 9 being gray and draw cordH beinglwhite, but this isiietabs'clhteli tion will appear. v

A lengthof the cloth thus formed is cut of! as indicated at the leftand, right of Fig. 1. 'It is to be noted that Fig. 1 shows sections ofcloth broken away from one another, but it is intended fabric which islong enough to extend around the bag girth, and of height enough betweenselvages I, to bring about the proper bag length. I

In cutting ofi a length of the fabric the wovenin draw cords 9 and H areout off along with cutting of the warp threads 3.

The cloth is folded at about its center, placing the edges E together.Before seaming these edges together asiindicatedat S in Fig. 2, theyareturhediunder; the turned-under portions becoming adjacent oneanother, thus forming selvage for seaming, as shown.

r The bag. is also closed at the bottom by a suitside and a fold line F.on'thejother, with the" woven-intwistedpair ofidraw'cords 9 and l l ar-,

ranged peripherally of P the bag, mouth. The

' ends ofthe draw cordsat this stage extend from ae e s by reasonyot thefact that they have; been cleared by thegfolded-in portions of the edges;E ',requir ed for selvagefjormation at. 't ese m-a II, which,theretofore have formed individuallengths, are knotted or otherwisefastened at two a points,- I3; and I5 Each knot joins differehtcolored-threads; so that, :as shown in Fig. 3, we have a double loop'ofcontinuous draw cord around the bag mouth, including the knots 11s" andlfi. However,;the double loop,'instead of being composed-ofsimpleparallel cordsv asin tying knots, or cutting ing'used, it is to beunderstood that tapes or the like may be substituted, in which event theadjacent tape ends may be vjoined by sewing, gluthatthe figure show acontinuous rectangle of l H ing, or the like. r

In Fig. 6 is shown another form of the invention in which one is assuredthat any predetermined spacing of the twists between the draw f cords ispositively maintained throughout the life of the bag. Like numeralsdesignate like parts.

In this case the pair of twisted draw cords is T ing threads, asindicated in Fig. 6. That is, one

' Next, as shownin Fig. '2, the draw :cords 9, and

the prior art, is composedof twisted cords, which a'realsowoveh-intothe-bag fabric. This twist-; i'nggefie ct is of some importance, as willappear, v.Ii r'rowlthe bag be'filled, and one of the knots l5 forexample is pulled a indicated at the right inLEig- 5,I .while theopposite side of the bag is, held,., both loops are pulled tight and.the bag mouth is drawn shut by a pucker, shown in-Fig; 4, as it actuallyis, but shown schematically in Fig.5." The pulling tight of the loopsinvolves notonlydrawing the cords frictionally through filling threadsF,but also involves frictional engagement between adjacent cords in thetwisted pair 9, l I. The result is that although the drawing shut of thebag mouth may be readily ac-l complished because of the very looseweavingin of the pair of twisted draw cords through filling threads(under one and'over three) neverthe-' lessa good frictional effect isobtained between the y twisted cords themselves.- This holds against anytendency-tot automatic opening of the bag in response topressure fromits contents. V 1 V l; V

At'the same time, if it is desired to reopen the bag a't any time, thisis readily accomplished simply, by pulling upon the knot which is closeto the bag I 3 for example in the present description, Fig. 4). 'Thisrequires only a' small-force directly along the draw cord to effect thereopening which could not be "accomplished by pressure from the bagcontents below. This.

again places the bag back in the position shown inEigs. 2 and 3...Reclosure and reopening can be; accomplished repeatedly withouttying'or un- 0f--the twisted draw cords (thewhi'te one) passes over allof the filling threads, butthe other draw cord (the gray one) passesunder only certain (every fourth) filling thread. The result is thedesired degree of looseness for easy ulling-shut of the bag mouth, alongwith the frictional look ing eiiect due to twist in the pairofdraw-cords;

and in addition there is obtained the locking ef= which the singlefilling threads ,5'are employed with "double warp threads {twisted tosurround every filling thread, thus maintaining a predetergj minedspacing of the filling threads even-with a quiteopenweavecharacteristic.

In Figs. 7 and 8 I'show a modifiedoperationgof. the invention inconnection with the form of-draw cords indicated in Figs. l 5, but itshould;ebe

understood that this modified use is alsqappli:

cable to theform shown in- Fjig. 6, l ikenumerals designate like parts.In this case, instead of; pullingonoknot; suclra's knot IS in ig.5;after sthe bag is filled, brie knot' (l5 or l}! ispulled along; witheither opposite unknottedloopgflfi or-L8 This draws shut the ba 'lasbefore with aidouble also be used as a bag handle, rtisunnecess ily.Arne are lQ i open to the operators grasp.

loop, ,but instead of having one long loose extension "on the side asindicated "in Fig. 4,;tliere are two shorter ones as indicated in Figi 17.}; These maybe brought together andused as a'bag, dle. While thesingle frieej extension oflEig.

long, and of course not as strongas'the two omen sions composed offourstrands.shown'inll liggfl. I,

It will benoted in respecttothe mode or operation indicated in Figs, 7and j8, that ,thislcannot be accomplished with the" construction shownin the Arne pap nt bec-ause thegunknottediloops'or It should beunderstood that'the durerent i s of the plm rd aref r thepurpose'or'read-l taliri the double loop'feature. Thisfj knbttin :"is

done at the bag iactoryand not by those; the field; Q rpses oi t e inyeni nf e gf relieve persons in the field of any tying o'runtying' or thelike, and without substantial damage to the construction.

,. Instead of so-called draw strings or cords be- In any event, thepurpose of the connection is to bring about a continuous endless doubleloop around the bag mouth, the double loop being woven in place. Whetherknots or splicing or the equivalent effect the continuity isunimportant, except that the knotting scheme is simplest.

Differentiating cord coloring is not necessary for the above forms ofthe invention if, in the bag factory, an equivalent scheme is providedfor identifying the proper cords to be tied for effecting a continuousdouble loop.

Differentiating coloring is however also useful in case it is desired toattach both of the loops to the bag fabric at one point, as for example,by the stitching or other fastening which forms the seam S. This avoidsthe necessity for any knotting or the like. In such event, closing ofthe bag mouth is best efiected by pulling at opposite single cords onopposite sides of the bag with the stitched fastening about midway. Thenthe differential coloring prevents inefiectively pulling the same cord.-When this attachment and closing procedure is adopted, the operator isgiven suitable directions to close the bag by pulling differentlyidentified (colored) cords. In this case the advantage of the twisteddouble draw cord is retained.

The weaving of several draw cords 9, ll over several filling threads atone time, as for example the several filling threads 5F in Figs. 1, 3, 5and 6, is referred to herein as a basket weave of the draw cords. .Thesurrounding of a. filling thread such as 5L in Fig. 6 by members of thepair of draw cords is referred to herein as leno weave of the drawcords. Thus in Figs. 1-5, as well as 1 and 8, we have a basket weave ofthe twisted draw cords, and in the case of Fig. 6 we have thecombination of basket and leno weaves of the draw cords and the fillingthreads.

As already made clear, the purpose of the hasket weave is to obtainenough looseness between the pair of draw cords and the filling threadsto obtain an easy puckering action when the bag is closed; and thepurpose of the leno component of the weave, as indicated in Fig. 6, isto maintain predetermined spacing of twists in the draw cord.

' Also, the purpose of the twist in any event is to obtain the finallocking friction for holding the bag shut against pressure from itscontents, which friction may readily be released for opening purposes bypulling the close-in knot or its equivalent while holding the oppositeedge of the bag mouth.

In view of the above, it will be seen that the several objects of theinvention are achieved and other advantageous results attained.

As many changes could be made in the above constructions withoutdeparting from the scope of the invention, it is intended that allmatter contained in the above description or shown in the accompanyingdrawings shall be interpreted as illustrative and not in a limitingsense.

I claim:

1. In a bag composed of open mesh warp and filling threads and having amouth, a draw cord woven into the open mesh adjacent said mouth, saiddraw cord being composed of a pair of cords one of which is helicallytwisted about the other, the 'ends of each of which are joined to theends of the other to form a continuous double loop of cord around saidmouth, whereby upon closing of the loaded bag by oppositely pullingdiiferent members of the double loop the helical twist is tightened toeffect such friction between said loop members that the bag mouth isnormally held shut against any force of the load but is readily manuallyopenable.

2. In a, bag composed of open mesh warp and filling threads and having amouth, a draw cord woven into the open mesh adjacent said mouth, saiddraw cord being composed of a pair of cords one of which is helicallytwisted about the other, the ends of each of which are joined to theends of the other to form a continuous double loop around said mouth,the pair of twisted draw cords having a basket type of weave withrespect to at least some of the filling threads of said fabric whereininterweaving .with the pair of draw cords is effected by spaced groupsof the filling threads, whereby upon closing of the loaded bag byoppositely pulling difierent members of the double loop the helicaltwist is tightened to efi'ect such friction between said loop membersthat the bag mouth is normally held shut against any force of the loadbut is readily manually openable.

3. In a bag composed of open mesh warp and filling threads and having amouth, a draw cord woven into the open mesh adjacent said mouth, saiddraw cord being composed of a pair of twisted cords, both ends of eachof which are joined to the ends of the other to form a continuous doubleloop around said mouth, the pair of twisted draw cords having a basketweave with respect to at least some of the filling threads of saidfabric, and having a leno weave with respect to at least some of theremaining filling threads.

4. In a bag composed of open mesh warp and filling threads and having amouth, a draw cord woven into the open mesh adjacent said mouth, saiddraw cord being composed of a pair of twisted cords, the ends of thecords being fastened to form two loops around said mouth, the pair ofcords as twisted having a basket weave with respect to at least some ofthe threads of said fabric, and having a leno weave with respect to atleast some of the remaining threads.

5. In a bag composed of open mesh warp and filling threads and having amouth, a draw cord woven into the open mesh adjacent said mouth, saiddraw cord being composed of a pair of cords one of which is helicallytwisted about the other, the ends of each of which are anchoredrelatively to the ends of the other to form a double loop of cord aroundsaid mouth, whereby upon closing of the loaded bag by oppositely pullingdifferent members of the double loop the helical twistis tightened toeffect such friction between said loop members that the bag mouth isnormally held shut against any force of the load but is readily manuallyopenable.

6. In a bag composed of open mesh warp and filling threads and having amouth, a draw cord woven into the open mesh adjacent said mouth, saiddraw cord being composed of a pair of cords one of which is helicallytwisted about the other, the ends of each of which are anchoredrelatively to the ends of the other to form a double loop of cord aroundsaid mouth, the pair of draw cords as twisted having a basket weave withrespect to some of the filling threads of said fabric, whereby uponclosing of the loaded bag by oppositely pulling different members of thedouble loop the helical twist is tightened to effect such frictionbetween said loop members that the bag mouth is normally held shutagainst any force of the load but is readily manually openable.

CHARLES V. BRADY.

